Tool for removing bushings



June 30, 1925. 1,544,246

H. J. LESLIE TOOL FOR REMOVING BUSHINGS Filed Jan 21. 1924 I Jill/aria];

Patented June 30, 192 5.

PATENT OFFICE HARRY J. LESLIE, OF ST. JOSEPH, MISSOURI.

TOOL FOR REMOVING BUSHINGS.

Application filed January 21, 1924. Serial No. 687,471.

To all whom it may concern:

Be it known that I, HARRY J. LESLIE, a citizen of the United States, anda resident ,of St. Joseph, county of Buchanan, State of Missouri, haveinvented a certain new and useful Improvement in Tools for RemovingBushings, of which the following is a complete speclfication.

The present invention relates to tools designed for use in extracting orremoving bushingsor ferrules from hearings or the like where such partsare used as linings, an operation which is freipently required to beperformed in automo ile repair work or similar shop work.

Accordingly, one of the objects of the invention is to devise a tool ofthis character adapted to'be conveniently inserted within a ferrule orbushing and soengaged therewith as to permit a punch or the like to beapplied to the inner end of the tool and thereafter driven to force theferrule or bushing out of position.

In its preferred form as herein illustrated, the improved tool comprisesa rod or bar having one end formed with a head for engagement with oneend of the-b'ushing, as well as by the operative end of a punch, thisend portion of the tool being also provided with a movable fingerforming a bar segment operating slidingly along the end portion of thebar in such a manner as to cooperate with one side of the passagethrough the bushin for tlfe pur ose of maintaining the hea of the bar eectively engaged with one end of the bushing during the extractingoperation. The improvement further comprises suitable means formaintaining the said finger or bar segment yieldingly advanced into itsoperative position within the ferrule or bushing.

A further object of the invention is to provide an eflicient tool foroperation in the desired manner, and one which will be of simple andcompact form, comprising few parts which will be inexpensive tomanufacture.

With the foregoing general objects in view, the invention will now bedescribed by reference to the accompanying drawin illustrating one formof construction whic I have devised for embodying e proposedimprovements, after which those features deemed tobe novel will beparticularly set forth and claimed.

In the drawing Figure 1 is a plan View illustrating a tool constructedin accordance with the present invention, and in operative relation to abushing which is to be extracted from a spindle, the latter parts beingrepresented in section;

Fi ure 2 is a similar view, but illustrating t e tool in the process ofbeing inserted within the bushing, and with the sleeve and bar segmentportions of the tool shown in section;

Figures 3 and 4 are transverse sections taken on the lines III-III andIV-IV, respectively, of Figure 1; and

' Figure 5 issimilar transverse section taken on the line VV of Figure2.

Referring now to the drawing in detail, this illustrates the improvedtool as comprising a bar 10 of suitable length, provided with anintermediate shoulder 11, and also -with a head or an enlarged terminalportion 12 which projects laterally or transversely toward one side ofthe axis of the bar 10, as clearly shown in Figures 1, 2 and 5. Thistransverse enlargement 12 is designed expressly for the purpose ofpermitting the same to be engaged over the edge of a ferrule or bushing14 at one of its ends, as represented in Figure 1, and also to permit apunch or drift (not shown) to be applied to the outer face of said head12 from the other end of the space 15 within the spindle or otherbearing 16 in which the bushing 14 is located.

For maintaining the head portion 12 thus engaged with the inner end ofthe bushing 14, the intermediate portion of the rod 10 is provided witha sleeve 17 slidingly mounted upon the rod, and also formed at one endwith a longitudinal finger 18, preferably tapered as shown, and thusadapted for longitudinal sliding movement alongside the working end ofthe bar 10, and at the side of the bar which is opposite from the mainprojecting portion of the head 12. This provision of the sliding finger18 serves as a bar segment for the working end of the tool, the purposeof this segment being to 'vided with a suitable kno permit the workingend of the tool to be inserted within the bushing for engagement of thehead 12 with the inner end of the bushing, and thereafter to maintainthe head engaged with the bushing by allowing the finger or segment 18to be thrust between the end portion of the bar and the ad acent side ofthe bushing. The tapered form of the finger or segment 18 is obviouslyto accommodate bushings of different diameters.

That end of the rod 10, opposite from the head or working end 12, isreferably pro- 20, between which and the corresponding end of the sleeve17 is interposed a suitable coil spring 21, whose function is toyieldingly actuate the sleeve in the direction of the head 12 andthereby normally maintain the sleeve in the position illustrated inFigure 1, with the finger or segment 18 in operative POSI- tion withinthe bushing 14. The sleeve 17 is also preferably formed with a suitableflange 22 for engagement with the outer end of the bushing beingoperated upon, while the shoulder 11 heretofore referred to alsooperates to limit the movement of the sleeve in response to the springsaction when the tool its not in use.

It is also preferred to construct the sleeve 17 and segment 18, and thecorresponding side of therod 10, with flat engaging surfaces, asindicated at 24, therebypreventing any rotation of the sleeve and itssegment on the rod, and ,thus maintaining the segment always attheopposite side from the e, head 12.

From the foregoing description, and explanation of the different stepsof the tools operation, the mode of use of the same will .be readilyunderstood. All that is required for extracting a ferrule or bushing 14of the ordinary form from the bore of a spindle or other bearing 16, isto retract the sleeve 17 and-its finger or bar segment 18 into theposition illustrated in Figure 2, and insert the working end of toolthrough the passage within the bushing 14, till the head 12 is engaged,as illustrated in Figure 1, with theinner end of the bushing. Thereafterthe sleeve 17 is released, to allow the finger 18 to act as an auxiliarybar segment within the sleeve'14, as shown in Figure 1,

1 thus serving to maintain the transverse enlargement or head portion 12securely engaged with the inner end of the sleeve. This permits theapplication of a drift or punch to this head portion of the tool, fromthe opposite end of the passa e 15 through the spindle or bearin 16,whereby the ferrule may be quickly riven out of the bearing by theaction of a hammer or the like applied to said drift. or punch. By thisoperation, the work of removing ferrules or bushings of this type may becarried out most speedily and expeditiously, and with far greaterefficiency than by means of the practice usually followed, wherein thebushing or ferrule is cut or otherwise mutilated, or attempted to beextracted by a tool fitted to the same at that end of the spindle orhearing from which it is sought to extract the bushing. With the presentimproved tool, the bushing is extracted not only quickly and with littleeffort, but Without any dan er of mutilating either the bushing or thecaring. The device may, of course, be made of any desired size, andobviously requires very few parts which are of extremely simpleconstruction and not easily gotten out of order. v

lVhile I have illustrated what I now regard as the preferred form ofconstruction, I desire to reserve the right to make all such changes andmodifications as may fairly fall within the scope of the appendedclaims.

What I claim is:

1. In a tool of the character described, a bar having one of its endsformed with a transverse enlargement projecting laterally to one side ofthe bar, and a bar segment having a permanent sliding connection withsaid bar and movable longitudinally alongside the opposite side of thebar.

2. In a tool of the character described, a bar having one of its endsformed with a transverse enlargement project-ing laterally to one sideof the bar, and a sleeve slidingly mounted on an intermediate portion ofthe bar and formed with a bar segment carried at the opposite side ofthebar from said transverse enlargement.

3. In a tool of the character described, a bar having one of its endsformed with a transverse enlargement projecting laterally to one side ofthe bar, and a sleeve slidingly and non-rotatabl'y' mounted on anintermediate portion of the bar and formed with a bar segment carried atthe opposite side of the bar from said transverse enlargement.

4. In a tool of the character described, a bar having one of its endsformed with a transverse enlargement projecting laterally to one side ofthe bar, a sleeve slidingly mounted on an intermediate portion of thebar and formed with a bar segment carried at the opposite side of thebar from said transverse enlargement, and means for yieldingly actuatingsaid sleeve in the direction of said enlargement.

5. A tool for extracting bushings or the like, comprising a bar havingan end por tion for insertion through the bushing and formed with aterminal enlargement projecting laterally to one side of the bar forengagement with one end of the bushing, and a device mounted movably onthe ba r and provided with a finger portion adjustable longitudinallyalong the opposite side of said bar for retaining said enlargementsegment having a permanent sliding conengaged with the end of thebushing during nection with said bar and movable longituthe extractingoperation. dinally alongside the opposite side of the 10 6. In a tool ofthe character described, a, bar. 5 bar having one of its ends formedwith a. In witness whereof I hereunto aflix my transverse enlar ementpro'ecting laterally signature. to one side of t e bar; an a tapered barHARRY LESLIE.

